Pull tab



FIG. 1 is a top perspective view of a pull tab showing my new design thereof;

FIG. 2 is a second top perspective view thereof;

FIG. 3 is a bottom perspective view thereof; and,

FIG. 4 is a top plan view thereof shown in an environment of use on a beverage can.

Elements shown in broken lines show environmental structures of a beverage can and form no part of my design. 

CLAIM The ornamental design for a pull tab, as shown and described. 